Aerial apparatus.



R. TAMPIER; AERIAL APPARATUS.

APPLICATION FILED AUG.14, 1911.

Patented Nov. 19, 1912.

Inventor.

Witnesses.

Leas.

BENE TAMPIER, OF PARIS, FRANCE.

AERIAL nrrana'rus.

Specification of Letters Patent.

Patented Nov. it; 1912.

Application filed August 14 1911. Serial No. 643,998.

type of mechanism which is adapted totransmit power from the same source to either of two means of -propulsion.

The object of the present invention is to provide such a mechanism of improved type in which the power from a given source can be directly transmitted to one propelling element or to a second propelling element.

A further object is to so arrange the parts that this change in transmission can be effected by a simple operation.

When the invention is applied to an aeroplane as in the present case, it consists broadly inprovidin a clutch member capable of partaking o the rotation of a drivmg shaft in which it is slidingly mounted and whichis adapted, when in one positlon, to transmit power to the traction wheels and when in another position, to transmit power shaft. Fig. 3 shows a modification of Fig.

1 in which the propeller is mounted directly on the driving shaft and in which a slightly different form of traction wheel propelling mechanism is used. I

' In these several views, like reference characters refer to corresponding parts Referring to Fig. 1, the driving shaft 1 driven by any suitable source of ower, carries at a convenient location a c utch memher 2 which may be mounted on the shaft in any convenient manner, so that it will artake of the rotation of the shaft, butwi be this result is obtained by making the shaft at this point square, as shown in the figure. The clutch member 2 is provided on one face with the teeth 3 and on the opposite face with the teeth 4. The clutch can be shifted along the shaft 1 by any suitable means,

such as the hand lever 5 pivoted at 6 and carrying at its lower end a fork or lug 7, WlllCh engages an annular recess in the member 2.

Adjacent the clutch member and loosely mounted on the same shaft is a gear 8 carrying teeth 9 which are adapted to engage with the adjacent teeth 3 of the clutch member. The gear 8 acts as a driving gear for the traction mechanism which may simply consist of a gear 8 meshing with the loosely mounted gear 8. The shaft upon which it is mounted carries a beveled gear 16 meshing with a beveled gear 17 carried by a shaft 18 to which a suitable sprocket is attached, to drive the chain 19 to the traction wheels. When the propeller cannot be mounted directly on the driving shaft 13*,

disk 10 is loosely mounted on the extremity of the shaft 1 which serves as one of the crank arms for the crank pin 12. This disk carries on its face adjacent the clutch member a number of teeth 11 ada ted to engage with the teeth 4 of said mem er. The propeller 15 is mounted on a crank shaft 14 and a pitman 13 connects the crank shaft 14 with the crank pin 12.

The operation of such a mechanism is as follows: When it is desired to transmit the power to the wheels, the lever 5 is thrown to the ri ht thereby sliding clutch member 2 along t e shaft 1 until the teeth 3 engage with the teeth 9 of the loose gear 8. As the clutch always partakes of the rotation of the shaft, this rotation will be transmitted to the ear 8 and then to the drivin wheels. If the ever 5 is thrown to the left, owever the teeth 4 will engage'with teeth 11 and motion will be transmitted to the propeller 15.

Fig. 3 shows a manner of arranging the parts when the propeller can be mounted directly on the driving shaft. The transmission mechanism in this case is especially applicable where the motor itself rotates. 1 designates a portion of the casing of such a rotating'motor and 3 a clutch member secured rigidly thereto. Obviously, 110

capable of sliding therealongr Preferably,

member could be secured to the shaft 5 and the same result would be obtained. Loosely mounted on the driving shaft 5 is a sleeve -6 carrying a clutch member 7 t to cooperate with the adjacent clutch member 3'. Secured to the other end of the sleeve 6' is a beveled gear 18'. Adapted to mesh with gear18 1s a beveled gear 22 which transmits motion through suitable cardan joints and the driving shaft 19 to the axle of the driving wheels 21'.

A second sleeve 8 keyed to the shaft 5' carries a clutch member 9' adapted to en gage with a clutch member 10 which is carried by the propeller, as shown. Thepropeller is loosely mounted on the shaft 5 and to stop its rotation when the clutch is thrown out, a brake 23' may be em loyed. The two sleeves 6 and 8' are pre'erably operated simultaneously by any suitable mechanism.

When the sleeves are thrown to the left 'the clutch members 3' and 7 will engage,

sleeve 6' will rotate and through the gear 18, which is then in'mesh with beveled gear 22', will transmit power to the driving wheels. If the sleeves be shifted in the 0pposite direction, the clutch member 9 which is continually rotating with the shaft 5,

- willengage with clutch member 11' to rotate the ropeller. It is to be noted that the shifting of. the sleeve 6' to the right will unmesh the ears 18' and 22', as well as throwing sai sleeve out of operative en-' :gagement with clutch 3'.

It is seen therefore that in a construction as described, a minimum amount of mechanism can be employed and the simplicity thereof allows of a good substantial struction.

What I claim is 1. In a transmission mechanism for aeroplanes and the'like, a driving shaft, a propeller loosely-v mounted thereon, a sleeve keyed to said shaft provided with .a. clutch member, a second sleeve loosely mounted on said shaft provided with a clutch memconber, a clutch member carried by said shaft' driving wheels adapted to propel'the aeroplane on land, and means to drive the same comprising a vertically disposed shaft adapted to be driven by said beveled gear, a propeller loosely mounted on sand driving shaft, a clutch sleeve keyed to said shaft and ada ted to rotate said propeller, and means to s ift said sleeves to control the operation of said driving wheels and propeller.

In testimony whereof I aflix my signa-' ture, in presence of two witnesses.

4 RENE TAMPIEB. Witnesses: H.- G. Ooxn,

LOUIS Jossn. 

